package com.itheima.jiekou8;

public class Test {

    public static void main(String[] args) {

        ClassE classE = new ClassE();
        classE.sing();
    }
}

interface InterA {
    void sing();
}
class  ClassD {
    public void sing(){
        System.out.println("只因你太美");
    }
}
class ClassE extends ClassD implements InterA{

}
